TheThiny (who may I remind you, correctly leaked the KP2 Kombatants by viewing the files) has said that there is an unactivated file that suggests that there is a secret boss fight against either Reptile or Noob. Since it had been recently said that there are still secrets in MK11, I believe that it is highly likey that Reptile is that secret. I have created this thread so that people can put any information they have or any suggestions on how we could possibly find Reptile. Sooner or later, we will find him!
Look to la Luna and stay great!